NASCAR O'Reilly Auto Parts Series
Stock car · Feeder · USA
NASCAR's second tier, renamed from Xfinity Series for 2026 when O'Reilly Auto Parts became title sponsor.
2026 season
| Status | In progress |
|---|---|
| Leader | Jesse Love (36-pt lead over Justin Allgaier going into Talladega) |
| Next round | Martinsville · Oct 31 (finale Homestead-Miami Nov 7) |
| Season | Feb 14–Nov 7, 2026 |
| Rounds | 33 |
| Cars | Chevrolet Camaro, Ford Mustang, Toyota Supra |